A HACK A DAY: How to make a remote controlled door lock

There are electronic door locking systems available out there, but most of them are pretty expensive. No doubt, the price is high because the manufacturer demands the value for its brand name and the quality it offers. However, if you don’t want to invest on expensive locks and need a simple, cheap one for your home, you can build one yourself in under Rs 500. Watch the video which will teach you how to build a remote controlled door lock using parts from an old RC toy.

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